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The part of a SNOMED CT expression that represents a clinical finding, observation, event or procedure. This focus concept may be given context by a surrounding content wrapped and may be made more specific by a refinement.

Example

  • A past history of replacement of the left hip may be represented by a SNOMED CT expression in which the focus concept "hip replacement" is refined by "laterality: left" and enclosed in a context wrapper representing "past history".

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